Correlation of Moxifloxacin Concentration, C-Reactive Protein, and Inflammatory Cytokines on QTc Interval in Rifampicin-Resistant Tuberculosis Patients Treated with Shorter Regimens

Background Drug-resistant tuberculosis (DR-TB) is a global health concern. QTc prolongation is a serious adverse effect in DR-TB patients receiving a shorter regimen. This study aimed to evaluate the correlation of moxifloxacin concentration, CRP, and inflammatory cytokines with QTc interval in DR-TB patients treated with a shorter regimen. Methods This study was performed in 2 groups of rifampicin-resistant (RR-TB) patients receiving shorter regimens. Correlation for all variables was analyzed. Results CRP, IL-1β, and QTc baseline showed significant differences between 45 RR-TB patients on intensive phase and continuation phase with p-value of Conclusion Moxifloxacin concentration, CRP, and inflammatory cytokines did not correlate with QTc interval in RR-TB patients treated with shorter regimens. The use of moxifloxacin is safe but should be routinely monitored and considered the presence of other risk factors for QTc prolongation in RR-TB patients who received shorter regimens.